Other definitions for mR (2 of 3)


  1. milliroentgen; milliroentgens.

Other definitions for Mr. (3 of 3)

[ mis-ter ]

abbreviationplural Messrs. [mes-erz]. /ˈmɛs ərz/.
  1. mister: a title of respect prefixed to a man's name or position: Mr. Lawson; Mr. President.

  2. a title prefixed to a mock surname that is used to represent possession of a particular attribute, identity, etc., especially in an idealized or excessive way: Mr. Democrat; Mr. Perfect; Mr. Macho.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use MR in a sentence

  • Some would run away and come to M.R. Singleton, my master, but he would only tell them to go home and behave.

    My Life In The South | Jacob Stroyer
  • There was no mistaking them, and Arthur gave vent to a whistle of consternation as he deciphered an “M.R.”

    The Master of the Shell | Talbot Baines Reed
  • I received grandmother's dear letter and M.R.'s kind and affectionate card.

  • The computer says the radiation count is down to ten M.R. above normal.

    Where I Wasn't Going | Walt Richmond

British Dictionary definitions for Mr (1 of 2)


/ (ˈmɪstə) /

nounplural Messrs (ˈmɛsəz)
  1. a title used before a man's name or names or before some office that he holds: Mr Jones; Mr President

  2. (in military contexts) a title used in addressing a warrant officer, officer cadet, or junior naval officer

  1. a title placed before the surname of a surgeon

Origin of Mr

C17: abbreviation of mister

British Dictionary definitions for MR (2 of 2)


abbreviation for
  1. (in Britain) Master of the Rolls

  2. motivation(al) research

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012